Abstract
The article focuses on electromagnetic processes in electric circuits with semiconductor switches. A mathematical model of a semiconductor converter with three-zone output voltage control has been created so as to analyse electromagnetic processes in semiconductor converters with pulsewidth control. The graphs showing electromagnetic processes in electric circuits are given. The mathematical model of the semiconductor converter is also used to study transients in semiconductor converters with actively-inductive load. The method of multiparameter functions, which are included in the algorithmic equations to analyse steady-state and transient processes in branchy circuits with semiconductor switches and reactive elements, has been improved by using the peculiarities of phase and linear voltages in the power supply grid. We have developed a new mathematical model of steadystate and transient processes in electric circuits of semiconductor converters of modulation type with multichannel zone usage of phase voltages of a three-phase power supply system without considering power losses in switches to quickly evaluate the influence of load parameters on the regulated sine and constant voltages. The results of this work can be used to develop the method of multiparameter modulating functions to simplify the analysis of transients in electrical circuits without taking into account the losses in key elements.Ref. 4, pic. 3
Highlights
The use of switches in the electric circuits of modern converters of electricity parameters significantly complicates the analysis of electromagnetic processes
This paper considers the usage of semiconductor converters as a high-frequency link in a three-zone control
The purpose of this study is to create a mathematical model of a semiconductor converter with a three-zone control of output voltage
Summary
The use of switches in the electric circuits of modern converters of electricity parameters significantly complicates the analysis of electromagnetic processes. Complications arise when it is necessary to model steady processes in branchy circuits of the variable structure, where in the sections with reactive elements there appear sinusoidal, impulse and DC voltages. Studies [1,2,3,4] point out the importance of using single-modulation semiconductor converters in the construction of secondary power supply systems for diagnostic complexes of electromechanical devices with various types of input energy. This paper considers the usage of semiconductor converters as a high-frequency link in a three-zone control. The purpose of this study is to create a mathematical model of a semiconductor converter with a three-zone control of output voltage
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
